You won't find a 10m/6m antenna. Instead, consider two options:1) A 10m antenna and one 6m/2m/70cm triband antenna with the appropriate diplexer.2) One 10m, one 6m, and one 2m/70cm dual band antenna and a Comet CFX-514J triplexer.

I ran my '8900 for many years with option #1, but recently switched to option #2 and all Larsen antennas. Note that option #2 does not give you all four bands at once. You have to switch out the 6 and 10 meter antennas, but it allows you to run all quality, as well as uniform size color and shape Larsens. BUT I've come up with an idea. See below.

I used a Comet CF-360B diplexer, one port 1.3-30MHz, one port 49-470MHz.By the way, I've come up with an untried way of running four individual antennas simultaneously:

-Output of the FT-8900 and run it to the input of a Diamond MX-610 Diplexer.This has 2 outputs, 1.3-30MHz and 49-470MHz. Attach your 10m antenna to thisport.

-Attach the 49-470MHz port of the MX-610 to a Comet CFX-514J Triplexer. Thistriplexer has outputs for 6m,2m, and 70cm.

The outputs of this triplexer are SO-239's so you can plug the PL-259's from theantenna mounts directly into the triplexer eliminating any lossy genderchangers. The only jumper you'll need is from the FT-8900 to the input of theMX-610.

There are plenty of CB antennas out there that can be use for 10 meters in almost every configuration and or mount. Add the Diamond CR627B and a switch box for the ten meter antenna. Problem solved with good performance!

Here's what I do with my 8900: for 2-440-6m I'm running a Maldol ex510b-nmo triband antenna. For 10m I'm using a Larsen NMO-27 cut for the FM portion of the band (take care trimming, a little goes a long way and replacement whips are a pain to find..ask me how I know!). The antennas are fed through a comet CF-360 http://www.hamradio.com/detail.cfm?pid=H0-001439 I also have a larsen nmo 150 5/8ths wave that tunes up great on 2m and 6m that I play with every once in a while. Everything fits in the garage, looks and performs fine.

I have considered adding a 2m-440 diplexer connected to the cf-360 to allow me to run a separate 440 antenna (same idea as K3GM) and using the Larsen 150 full time on 2m and 6m, but haven't done it yet, I've been happy with the Maldol after I figured out an initial SWR issue (bad SWR meter grrr). if the Maldol dies I'll probably try it.

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